Being the sexual deviants they are, Nintendo wanted to design a Pokémon with such an extreme sexual innuendo without people knowing. Thus, Cloyster (or Cloyteris or Clitser) was designed. All the important parts were implemented, the two labia's and the clitoris, with an extra anti rape goblin to prevent the delicious loli from being attacked by Pedobear. Some argue Nintendo wanted to sexually educate the children in a non-adulterous way, but the truth is Satoshi Tajiri (creator of Pokémon btw) just wanted the delicious loli.

Unlike most vaginas, Cloysteris WILL eat your cock if you try to fuck it. Firstly, it'll use its famous move 'Clamp' where the whole shell will trap your cock. Then the anti-rape goblin will proceed to eat your delicious cock while you yell out FFFFFFUUUUUUUUUUUUUUUUUUUU-. While all this is happening, Cloyster will be having many extreme lulz at your expense. However, taking into account that the Anti Rape goblin is a nigra, scientists believe you can use watermelonz or chikinz as a distraction so you can escape.

However, some Cloysters were born with a genetic deficiency and instead of an Anti Rape goblin inside them, they will have Goatse (refer to the picture on the right in case you're wondering what that would look like). Should you get attacked by Cloytse, then all hope is lost for you. The infamous 'second asshole' inside the first asshole of Goatse will nom nom on your penis.